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Contents
require 'digest/sha1'
class User < ActiveRecord::Base
has_and_belongs_to_many :user_groups
# depends_on functionality is from the classy-inheritance gem
# that is bundled with lockdown.
# For more info: http://stonean.com
#
depends_on :profile, :attrs => [:first_name, :last_name, :email]
# Virtual attributes
attr_accessor :password
validates_presence_of :login
validates_presence_of :password, :if => :password_required?
validates_presence_of :password_confirmation, :if => :password_required?
validates_length_of :password, :within => 4..40, :if => :password_required?
validates_confirmation_of :password, :if => :password_required?
validates_length_of :login, :within => 3..40
validates_uniqueness_of :login, :case_sensitive => false
before_save :prepare_for_save
attr_accessible :login, :password, :password_confirmation,
:first_name, :last_name, :email
# Authenticates a user by their login name and unencrypted password.
# Returns the user or nil.
def self.authenticate(login, password)
u = find :first, :conditions => ['login = ?', login] # need to get the salt
u && u.authenticated?(password) ? u : nil
end
# Encrypts some data with the salt.
def self.encrypt(password, salt)
Digest::SHA1.hexdigest("--#{salt}--#{password}--")
end
# Encrypts the password with the user salt
def encrypt(password)
self.class.encrypt(password, salt)
end
def authenticated?(password)
crypted_password == encrypt(password)
end
def full_name
self.first_name + " " + self.last_name
end
protected
def prepare_for_save
encrypt_password
end
def encrypt_password
return if password.blank?
if new_record?
self.salt = Digest::SHA1.hexdigest("--#{Time.now.to_s}--#{login}--")
end
self.crypted_password = encrypt(password)
end
def password_required?
(crypted_password.blank? || !password.blank?)
end
end
Version data entries
16 entries across 16 versions & 1 rubygems